One of the most common places to pick up the virus is your local dog park.

There are effective vaccines available and animal health officials are urging dog owners to check with their veterinarian to confirm that their pets are protected.

Puppies generally require a series of vaccinations while adult dogs may need a yearly booster. All of the dogs that have been infected during these outbreaks had either never been vaccinated, or had only received one vaccine.

Forty years ago, one of the greatest boxing matches in history took place in an unlikely setting: the capital of the Philippines. Muhammad Ali's epic win over great rival Joe Frazier in 1975 became known as the "Thrilla in Manila."